1) Why is there such an irrational disgust for scientific data or theories that might combat evolutionary theory?

Your premise is incorrect. Science accepts new data all the time, and scientific data that challenged current theories of evolution would have no problem. There are plenty of acrimonious disputes in real science, but eventually the most useful models prevail. If ID produced a more useful model than evolution, it (or whatever part made it useful) would eventually be accepted... unfortunately for ID proponents, ID currently doesn't produce any useful model of anything. Dressing "goddidit" up in some sciencey sounding jargon doesn't provide any useful insight.

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A gentleman phoned in and suggested that evolution be the only theory taught (period). When the broadcaster questioned, why not teach theistic evolution, creationism, intelligent design, and evolution?

Here we get to the stuff that does trigger disgust, but this is not an irrational reaction. Creationism, whether in the ID flavor or otherwise, is not supported by any coherent scientific theory (if you believe there is a scientific theory of ID, please feel free to present it!) For those of us who value the scientific process, the attempt to pass off nonsense as science is directly contrary to our interests. The reaction you get when you try to get creationism into the science class is the same reaction you get from a doctor who sees a quack passing off some ineffective treatment off as a cure for cancer. Real science cures diseases. "Goddidit" does not.

Theistic evolution generally doesn't fall into this category, because it's proponents* don't try to pass it off as science. It doesn't belong in science class, because it's a theological or philosophical argument, but unlike ID, it's not an attack on the whole enterprise of rational inquiry.

* Ken Miller is a good example of this. Oh, and unlike Dembski, he showed up at Dover. His testimony is worth reading, as is the whole transcript. You can find it at http://www.talkorigins.org/faqs/dover/kitzmiller_v_dover.html Seriously, if you want to understand why most of the scientific world views ID as creationism in a cheap tux, it's a good place to start.

Finally, you will find a lot of snark and crude jokes on this forum. It's a place where people come to unwind, frequently by mocking creationists who have shown themselves to be immune to reason. If you wish to engage in a serious discussion, you are free to ignore responses which do not pertain to it. There are many here who will engage in serious discussion, as long as you do likewise. OTOH, if you show that you aren't capable of engaging in rational discussion (e.g. Robert Byers), then eventually all the responses you get will be mockery. If you want an excuse not to address serious questions, "OMG TEH MEANIE EVILUTIONISTS SAID NASTY THINGS" is ready made for you.